Open Source Ecology - User contributions [en]

Talk:Main Page

2017-04-03T18:30:11Z

Jan R. Balzer: Request to Repair a broken link (oseeurope.org).

{{RightTOC}}
==Please anyone with permissions to edit the main page: Repair broken OSE Europe URL, then remove this section.==
Change from oseeurope.org to http://opensourceecology.org/wiki/OSE_Europe as the domain was hijacked often and did us more harm than good - [[User:Jan_R._Balzer|Jan R.I. Balzer Fruholz]]

==Since when is the boat a part of the [[GVCS]]? -[[Marcin]]==

== Notice ==

Please feel free to sign up and add information to the pages to help out!

== Read more here.. ==

* Maybe the front page should be more informational for someone completely new to the subject? By adding a few beginners "Read more here" it would be more enjoyable, or something like that. My 2 cents! --[[User:Fat64|Fat64]] 16:42, 18 February 2009 (PST)
** The article "Evolve to freedom" seems like something not far from where I am getting. --[[User:Fat64|Fat64]] 16:44, 18 February 2009 (PST)

== Internationalization ==

As you probably know, Mediawiki the software you're using is the same as Wikipedia. So you can also use the multilanguage features used on Wikipedia. If you'll adopt that feature, each page could have a translation in a different language.
:I second this --[[User:Jorgeandr3s|jorgeandr3s]] ([[User talk:Jorgeandr3s|talk]]) 18:22, 31 July 2014 (CEST)

==HTML disabled for non-sysops==

: ''Looks like you have $wgRawHtml enabled on a publicall editable wiki. That is ''really'' dangerous, it's really an invitation to mischif. For embedding videos, use a specialized extension [http://www.mediawiki.org/wiki/Category:Video_player_extensions]. If you need full HTML every now and then, make sure it can only be defined by trusted people [http://www.mediawiki.org/wiki/Extension:RawMsg] [http://www.mediawiki.org/wiki/Extension:HTMLets]. -- [http://www.mediawiki.org/wiki/User:Duesentrieb Duesentrieb] 20:56, 31 March 2009 (UTC)''

I added an extention called nukeHTMLPHP that's supposed to remove any <eeeeeeehtml><b>html <i>tags</i></b></eeeeeeehtml> in edits from non-sysop users (<-like that) while letting sysop users add the <eeeeeehtml><b>html <i>tags</i></b></eeeeeehtml> (like this). So if anyone needs to use HTML then talk to a wikisysop to enable the html on a page or section. As long as a non-sysop doesn't edit an html section then it should keep working after users edit other sections. -jeremy

== ideas for products ==

I was searching for a stainless steel spray bottle but only found a few links
*http://norbys.stores.yahoo.net/caststspbo11.html 10.99
*http://www.enailsupply.com/index.asp?PageAction=VIEWPROD&ProdID=15698 35.96
*http://www.bedbathandbeyond.com/product.asp?order_num=-1&SKU=11318517&RN=937 9.99

This is a very small niche market that OSE can capture when metal working comes online. [[LuciaStove]]

==Global Villages==

would be good to point to a definition and stress on what "interconnectedness" of villages means. [[User:Franz|Franz]] 05:12, 8 June 2009 (UTC)

== Combined Greenhouse/Solar and Biofuel powered steam generator/distiller system ==

This is all a brainstorm/pipedream in my head at this point, so criticism, suggestions, refinements, and complimentary ideas/links are welcome.

All this talk of zero waste made me wonder why the combination of several elements to utilize waste streams hasn't been suggested.

In a nutshell, the goal is to combine a solar concentrator with a biofuel boiler to ensure a consistent flow of steam which would exert it's work on a turbine generator. The biofuel exhaust would be directed into a greenhouse or bio-reactor, functioning as a CO2 generator. The feedstock for the boiler would either mix filtered graywater with rainwater, or would have a separate side for graywater, engineered to be easily cleaned. The steam line would be connected to a condenser/heat exchanger, and the distilled water used where needed or recycled back into the system.

I figure you could work in some sort of still that takes advantage of waste heat to get ethanol for fuel, with an initial sustainable crop for feedstock. [http://en.wikipedia.org/wiki/Cellulosic_ethanol] Watched a youtube video for understanding [http://www.youtube.com/watch?v=dF3PS1v8nKY] and I believe a small scale biorefinery that uses the leftover lignins as a main heatsource would be needed.

'''TLDR Recap'''

- A steam boiler heated by both solar concentrator and biofuel burner (with exhaust gas directed into a greenhouse or algae bioreactor, maybe both with algae being on the end).

- Heat exchangers where feasible, excess heat used for ethanol still or anything needing heat (interior heating).

- Modular, easily replicable design. Emphasis on flexibility, simplicity, and effectiveness at actually performing in effective amounts.

- An initial pre/post processing area for lignocellulose to be converted and fermented and further distillation of the low-yield stills.

- The combined stills will use the fermented lignocellulose to make low proof ethanol, which will be fed into the post process solar/biofuel powered still to finish concentrating the ethanol.

----

'''Considerations and pitfalls'''

* If it's even feasible or possible to do this. I'd imagine having to supplement the stills with more heat then the excess produced by the steam generator.

* Figuring out the ratios, this includes a suitable crop for biomass for the stills and the land required, and if ethanol is even suitable.

* Determining the most suitable and cost effective materials.

* Incorporating permaculture principles to the stock crops, and picking stock crops suitable for permaculture.

* [http://en.wikipedia.org/wiki/Barton_Evaporation_Engine] This link is intriguing. Especially the bottom part talking about combining thermodynamic cycles.

* A lot of different fields coming together. An expert in thermodynamics would do a lot to set me straight.

* The design. I picture separate processes incorporated to capitalize on waste chains.

* Variations for different climates, ecologies, and other natural resources available.

* What biofuel to incorporate into the system. Lignocellulose needs a pretreatment. Algae has a few breakthroughs to make before becoming practical. If Ligno is used, a biorefinery would need to be made, and a decision would need to be made on what goes where and how to incorporate the waste CO2 with greenhouses.

*** And of course, the cost. Being able to fabricate a majority of the parts would be a major plus.

== Windward ==

Haven't seen this mentioned on the site; http://www.windward.org/what01.htm "Building a working model of sustainable community"

<blockquote>"Windward is an intentional community located just north of the scenic Columbia River Gorge about 80 miles east of Portland, Oregon. So far, we've acquired 131 acres of pasture and forested land, put in basic services (septic and water systems, power and internet-access, etc.) and learned a lot in the doing of it all. While we still have work to do, we're proud of what we've accomplished, and excited about having reached the point where our renewable systems are coming on-line and we're able to turn our attention to building sustaibable housing.<br>

Nature is complex, and the rule in working to master complex systems is that everything takes longer, costs more and turns out different than you thought going in. It's only by getting "hands on," and actually working and living with these systems, that the challenges can be overcome and their true potentials realized.

It's easy to see that change is coming at a feverish pace. What's harder to see is a way to ride that wave of change to a better place; to show that it is possible using appropriate technology to enhance the environment while creating a wholesome, satisfying and sustainable way of life. Put another way, we're working to demonstrate that it is possible to sustainably feed, clothe and fuel a village of twenty people on one hundred acres." </blockquote>

Looks like they've been at it for about 20 years.

Also this sounds like BS but possibly worth a look: A book of "Public Domain Inventions" for sale: [http://www.lulu.com/product/ebook/renewing-the-earth-public-domain-inventions-for-a-sustainable-future/2498556 "Renewing the Earth: Public Domain Inventions for a Sustainable Future"] "solar-powered desalination and solar-powered steel foundries, from megascale seawall construction to pumping large water supplies without a pump"

== RSS feeds for watchlist - MediaWiki upgrade ==

Hi there, I just registered here... would be nice to have feeds for watchlist, like recently almost all Wikimedia project and also OpenStreetMaps have. I guess this has something to do with the version of MediaWiki. I have no clue which revision or version has these feeds, but it would be nice to have them here. Like that, one is able to watch multiple wikis and does not have to visit the site to check whether something is happening. Cheers, --[[User:Kozuch|Kozuch]] 17:53, 13 September 2010 (UTC)

== One Way to Go / Draft for Main Page Update ==

As per Rasmus's suggestion, here's a draft of the OSE main page that uses the same format as Ekopedia, which is essentially the format of Wikipedia's main page. This is one possibility for the needed update. The draft shows a potential layout but lacks functional links.
----
[[Main page ekopedia-like]]
----

I think it could be valuable to have all of the elements of the GVCS listed out like this, if the list is updated regularly to reflect the evolution of the project. What are the strong and weak points of this particular layout? Within this layout, what could be different/better? Beyond this layout, is there another way of arranging things that would be more intuitive?

Marie,
I had started a prototype for the main page at [[Main Page Testing]]. You may want to take a look.
--[[User:Elifarley|Elifarley]] 15:27, 4 February 2011 (PST)

@Elifarley I think the header you put together is much better. What stopped your work on the project of updating the main page? I'm trying to imagine a page that would serve the interests of rapid parallel development, and listing out the components of the GVCS lets people find what they are interested in and might be able to contribute to much more quickly. It also shows all visitors where the project is headed without a long explanation. I think the Ekopedia-templated page might be serviceable until the project evolves beyond its current scope, or until something better can be put together. 12:04, 5 February 2011 (PST)

@Marie, I moved over to other tasks...
We may use P2P Foundation wiki as an inpiration:
http://p2pfoundation.net/
See also '''P2P Foundation in a nutshell''': http://p2pfoundation.net/In_a_Nutshell
--[[User:Elifarley|Elifarley]] 15:20, 6 February 2011 (PST)

I started working on a Main Page redesign. It seems as if OSE is getting quite a bit more press, which leads more people here to the wiki (which is how I got here.) Unfortunately, if you're a new user who has just seen one or two of the GVCS videos, it's very hard to figure out the full scope of the project or how to get involved. I think a cleaner front page that directs new users a bit better would be helpful. I've started to put together a [[Main Page GMHEdit|cleaner version of the Main Page]] that I would be interested in getting feedback on. I borrowed heavily from the current [[Main Page]], revision, and a couple of other wiki's I work on. Feel free to make suggestions or implement it as is if you see fit. --[[User:Grant Henninger|Grant Henninger]] 15:55, 15 February 2011 (PST)

There is a mistake in the product matrix; it should say CNC multimachine.

==Not obvious how to sign up for the wiki==
The link to sign up for the wiki is buried halfway down the "Get Inolved" page. It took me quite a while to find it. I suggest making a relatively obvious link at the top of the main page, a link at the top of the get involved page, and a link at the top of the crash course page. This would make it easier to register for the wiki. [[User:Jason|Jason]] 02:12, 21 May 2011 (PDT)

==Standardizing the links from the Main page for better visibility==
Along the lines as Jason said above, I suggest creating links from the GVCS tree diagram at the bottom to standardize the pages where the documentation will be found. Only one main page per GVCS unit, each of which is run from a template. For example, right now the CEB Press link in the tree takes me to <html><a href="http://opensourceecology.org/wiki/Category:CEB_Press">the CEB Press Category page</a></html>. The flow of people interested in browsing around the different GVCS pieces will find this more easily flowing if the link on the tree was to the main CEB Press page where the Bill of Materials, Building Instructions, etc were found.

== Common place for questions ==
I think it would be useful to have a common place for questions, as the activity on the wiki is quite low.
For example I had a question at [[Talk:Global Village Construction Set#50 or 51 machines?]], and, as there are not so many people reading that page, it would be better to have a central place for asking questions. Or better, to just provide the links to the pages where the questions are put. Therefore it would be easy for anyone to see if there are new questions that might worth answering.
Of course we can always use the forum for questions, but it won't be a good idea to fill it with threads for all the minor questions. [[User:Gonzo|Gonzo]] 23:17, 25 February 2012 (CET)

== Which Energy System to Use ==

Hello i am working on an open souce project to creat the largest sanding machine in the world, but due to restrictions in how much energy can be drown from normal elecric power suppy i need a motor system running on zero or very low emitions as it will be working inside buildings, what im not sure of is to use battery which once ran out will take ages to charge, a power cable from a generater or one of the gas powers engines, i require about 32 HP i think and will be working in large halls like scahool halls with windows and doube doors open, any ideas the best place to start and the cheepest way to test without building a full scale modle, help would be appriciated as this has been a project i have wanted to complete for a number of years.

== formatting of mission ==

<p>''"'''Openly licensing''' allows others to replicate, reuse, adapt, improve, adopt, bring to scale, write about,<br> talk about, remix, translate, digitize, redistribute and build upon what we have done."- <small>[http://www.shuttleworthfoundation.org/ Shuttleworth Foundation]</small>''<br><br><b>Please join us by becoming a '''[[True_fans|True Fan]]''' today.</b>

== Linda Maria Frank, Author of Teen Puzzle Series, Presents Publications at the Newbridge Road ==

Annie Tillery Secrets are just pure enjoyable! It's a case involving Nancy Drew meets CSI. Join YA author, Margaret Maria Frank, with the Newbridge Road Holiday Good. Frank will be showcasing her Annie Tillery Mystery series, the new generation associated with girl detective, as [http://www.parajumperssaleoutlet.org parajumpers outlet] well as presenting information about the various programs and session plans she offers the books. Satisfy Linda Maria Honest, and sample the woman's two books with the series, "The Madonna Ghost" and "Girl with Pencil, Drawing.In . The third in the collection, "Secrets in the Fairy Chimneys," is due to come out late this year.

Featuring publications at arts and crafts gatherings is a relatively exceptional occurrence, but as Chad puts it, "Authors are generally artists and books are our creations. Painters use coloring, writers use words and phrases and ideas."

Frank will be presenting your ex wares along with other craft vendors. Find out more about Frank's routines on her Facebook site, Official Fans with the Madonna Ghost.

An additional parajumper parka "feel good" from the sale of the girl books is Frank's contribution of one dollar coming from each book towards the INN (Interfaith Nutritional System).

The fair will likely be held at the Newbridge Road School 1601 Newbridge Rd., Belmore, D.Y. 11710.

About Margaret Maria Frank: After having a lifelong career teaching science at both high school and university or college levels, Frank embarked on a career as an creator converting case reports from her forensic research courses into credible mysteries for girls of every age group. She resides about Long Island, New York. The initial two books of the Annie Tillery Mysteries series are "The Madonna Ghost" and "Girl with Pencil, Drawing." "The Madonna Ghost" has been awarded Rising Superstar designation. Frank will continue to reach out to educators, delivering lesson plans depending on her books, on her website. She does fundraising situations using her escapades in authorship as a attract. Frank also is producer of "The Writer's Aspiration," a [http://www.parajumperssaleoutlet.org parajumpers sale] local gain access to TV show, featuring selection interviews with authors. Chad views this like a great opportunity for writers helping other writers.

Each month, a rater will receive a list of items to choose from, including mini headphones, laser printers and even a spin bike, NPR affirms. They choose the a pair of they want, in exchange for creating their own reviews on the products.

Amazon may ask for the products again any time they want, but one top parajumper coats reviewer told NPR they hadnt questioned him to return virtually any in five years. Thats pretty cool of which. An unbiased consumer evaluation system would be perhaps cooler, parajumper jackets but we wont hold our breath for that.

== Chefs and Restaurateurs Get pleasure from Taste of Slide Event ==

Taste of Fall came together as a way to both thank consumers for their patronage as well as introduce new products Daylight Foods will soon be selling. These especially are Guittard Chocolate along with Ferrarini Italian meats and cheeses. All of the seasons produce sourced for your meal was organic and natural from either Coke Farms or Lakeside Organic and natural Gardens.

We really planned to put together an event to show our customers just how much we appreciate his or her commitment to us, described Stephanie Macedo, marketing director at Daylight Foods. We have been also very excited to be toting new products and desired to have our clientele have the opportunity to sample and tell us his or her opinion about them.

Property Family Vineyards presented a beautiful setting disregarding the Silicon Area, while Chef Mathieson Jennings from Poplar Creeks Bar and Grill made a wonderful menu coupled perfectly with House Family Vineyards Chardonnay, Pinot Noir, Cabernet Sauvignon and Merlot. The dishes included lentil hummus along with shaved baby rainbow peas, watermelon radish and dark radish, roasted beets with a orange cheese fondue and parajumper jackets candied kumquats, crazy loin with turnip puree and butternut squash soup dished up in baby pumpkins.

Chief cook Mathieson used Guittards single beginning chocolate to create chocolate truffles, chocolate mousse with a effect of cayenne as well as chocolate butter cookies having a chocolate mousse filling.

Ferrarini offered a tasting of these products which included prosciutto, mortadella, salami, provolone, parmigiano-reggiano as well as smoked provolone. These items plus much more will soon be available from Daylight Foods. Ferrarini established fact in Italy along with joins Daylight Food line of high quality Italian language products including pastas, olive oils, and sparkling water.

Daylight Foods is excited to be expanding into new markets which include wholesale organic generate, chocolate and German meats and cheeses. They are always trying to meet the demands of these customers and guarantee they are providing the finest customer service possible.

Left Field NYC doesnt slack when it comes to clothes that are made to last for your entire life. The fit and fashoins are classic adequate that there's something in most collection you won't mind rocking 10 years from now. And have confidence parajumper parka in us, they definitely won't wear out before then.

The fall [http://www.parajumperssaleoutlet.org parajumpers outlet] 2013 lookbook from Remaining Field features Corinna Mantlo, the particular founder of the Motor bike Film Festival. Collectively, the two put together greaser type photoshoot to showcase just how the bomber jackets, crewneck knitted garments, work shirts, and also military-inspired field pants check out two wheels and off. [http://www.parajumperssaleoutlet.org parajumpers sale] If cycles arent your thing, these parajumper coats clothes are rugged and chic enough on their own to allow you to look like a badass. Hit up the Left Field NYC website to cop, and dont forget to look into the brands famed corduroy options.

== Update links, more focus on collaboration ==

The links on the OSE Network section are out of date. The Collaboration section can be improved to get people more involved.

We might want to re-structure the main page completely, but in the sense of continuous improvement, I propose the following changes to the OSE Network and Collaboration section:
* oseeurope: Full of spam
* OSE Italy: Commercial shoe page
* Blog, ...: outdated links
Also,
* remove the project plan from 2014 (or replace by the one from 2015)
* move the GVCS Machines template out of the blue box to the bottom of the page (full width). It looks pretty ugly right now.

Proposed source for left-hand-side table td:
<pre>
<h2>'''OSE Network'''</h2>

*[http://opensourceecology.org/ OpenSourceEcology.Org]
**[http://opensourceecology.de/ Open Source Ecology - Germany]
*[http://www.youtube.com/user/marcinose YouTube Channel]
*[http://vimeo.com/opensourceecology Vimeo Channel]
*[http://forum.opensourceecology.org/ Forum]
*[https://groups.google.com/forum/#!forum/opensourceecology Google Group]

<h2>'''Get involved'''</h2>

* Take the [[Tech Team Culturing Survey]] to join the team
* Sign up for our [http://eepurl.com/Eopwf weekly newsletter]
* [[Create Wiki Account]]
* Read the [[Getting Started Guide]]
* [[Dedicated Project Visit]]
* [[True Fans|Make a Donation]]
</pre>

To keep in mind, see [[Main page ekopedia-like]]

== Signup simplification? ==

Hey folks,

Great to be here– and I hope to offer what I can. To begin with, in the process of signing up, there are

1) a number of dead (or at least zombie) links to information or signup locations (for instance, Open ID is referred to but not working)
I see that signup difficulty has been mentioned before, in at least [[Talk:Main_Page#Not_obvious_how_to_sign_up_for_the_wiki | Not_obvious_how_to_sign_up_for_the_wiki]]

2) A number of orientation-type or might-be-useful-to-the-uninitiated information sources (e.g. calendars, pieces of the "orientation" series of links) that are not easy to find, or not listed in a central place.
Also mentioned before, at least at [[Talk:Main_Page#Common_place_for_questions | Common_place_for_questions]]
and [[Talk:Main_Page#Update_links.2C_more_focus_on_collaboration | Update_links & more_focus_on_collaboration]]

I'd love to fix or at least comment on these issues while they're still semi-fresh in my mind, and hopefully do some refining when my wife Sabina goes through the signup process– but of course I don't have permissions to do anything on front-facing pages as a newb.

So- input on whether I should comment away, or bug somebody to grant me greater editing access? Also, when I figure out who that is, shall I work to make it easier (at least for logged in members) to find this information?

One of the potential issues with (1) above is that I understand it can be useful for it to NOT be absolutely easy to become a member of a community, depending on how much community resources are absorbed by new members. So if there's such an intent behind those "problems", I'm fine with that (at the very least as a new member) and will cooperate, but would appreciate it if somebody could tell me that.

Thanks!
Brandon
--[[User:Blrdaywater|Blrdaywater]] ([[User talk:Blrdaywater|talk]]) 22:05, 25 August 2015 (CEST)

User:Jan R. Balzer

2017-04-03T18:25:26Z

Jan R. Balzer: clean up, update to 2017

[[Image:.jpg|thumb| myname]]

https://wiki.opensourceecology.de/Benutzer:Jan_R.B.-Wein

==Team Culturing Information==

==='''WHO''' I am?===
*Aerospace expert with a strong background in farming as I just grew up in a countryside next to nowwhere and still feel myself as belonging rather to nowhere than to big gatherings of concrete.
* Astronomy, Nature, hence Ecology (Biology) & the impossible such as myths, fairytales and fantasy and the good are my life.
* Despite a strong military background in family I am a declared enemy of war or using scientific breakthroughs for raiding neighbouring tribes, villages, natives, towns, cities, countries or covenants.

==='''WHY''' are you motivated to support/develop this work?===
*Open source is what will get us forward.
*Open source is what will make our planet Earth's life easier, longer.
*Open source promotes discussion and hence evolves philosophical questioning | objectivity.
*Open source ecology bundles efforts (instead of many developers engineering several highly redundant solutions, what complicates everything - also it's a waste of time if noone is interested in these projects or lost overview or missing understanding due to lack of documentation, proper open sourcing).

==='''WHAT''' are your skills?===
*Nature
*Webdesign
*Aerospace systems
*Embedded systems (worked with 8-bit and 32-bit microcontrollers, but favoring super computer by now)
*Electronics
*Natural Building in form of stoves, fire places, tree houses and shelters
*Automation of processes (currently struggling with some big projects).
*CAD/CAM familiar, but strong supporter of open source, thus blender/[http://cad4arch.com/cadtools/ CADTools].
*Fuel cells and alternative energy.
*Loving art but really not too skilled myself.
*Familiar with CNC
*Chemistry basics.
*Farm work
**fruit, nut, vegetables
**Haying
**Milking cow or goat or sheep using a machine, automaton or milking old school.

''How have you already contributed to the project?''
*I contributed by spreading the word, some more minor wiki corrections and evolving the german wing of opensourceecology. My projects I submit under the giant of open source ecolgy and especially its purpose, philosophy and flair. (what I'm not happy with is more and more consulting and marketing finding its way to OSE, eventhough I think that's unavoidable to a degree).

===HOW can you help?===
*''How are you interested in contributing to the work of GVCS development?''
In giving what I can, and hopefully the realization of some machines and/or by open sourcing some of my findings.
*''Can you volunteer to work with us, and if so, how many hours per week?''
This question is unlucky. People give what they are able to give within their freetime (volunteering, especially per virtual connection, will not feed them). Volunteering even by real world connection where people usually invite you if you e.g. have no more to eat, is difficult. So doing this for you with real volunteering contract as this question somewhat implies (tell me please if I'm wrong) is not doable. Open sourcing and contributing volunteeringly to projects of course is a different story. I'm looking forward to it.
*''Are you interested in working with us for pay? If so, what services can you offer, and what is your hourly or per-project rate?''
This of course, is interesting as it would feed oneself. So yes, definitely making freetime philosphy to progress in a full time scale sounds great. My major project would be/is the milking robot (I call it [http://wiki.opensourceecology.de/Milking_robot AMOR], Automated Milking & Other Robot).
Other projects are microbial fuel cells & micro hydro as well as electrical power cube conversion.
*''Are you interested in a [[Dedicated Project Visit]]?
Of course! I would like to help you on your small farm! Unfortunately this could prove difficult as I am pretty busy.
*''Are you interested in purchasing equipment from us to help bootstrap development?''
I am.
*''Are you interested in bidding for consulting/design/prototyping work?''
True.

*''Would you like to see yourself working with us on a full-time basis?''
This would be the summit - even though I doubt you will take me as I had to fly to you, and I'm a crazy guy with even crazier projects.

Now let's proceed with the real thing, making this world a better place for you, me and the entire space!

[[Category: Team Culturing]]

File:Cebpress-controller-schematic-v4.png

2014-03-31T04:33:09Z

Jan R. Balzer: Jan R. Balzer uploaded a new version of "File:Cebpress-controller-schematic-v4.png": Corrected cebpress version 4 image. Protection Diode had wrong direction. (was correct in schematic)

Schematic for CEB Press Controller Board v4

OSE GNU/Linux Build

2014-01-31T08:33:01Z

Jan R. Balzer: the last edit was misleading

==Introduction==
It is useful to publish a Linux build dedicated to the development of the Global Village Construction Set ([[GVCS]])

==Contents==
This build would contain:

*Prenstallation of all necessary software:
**[http://www.blender.org/ Blender]
**[http://en.m.wikipedia.org/wiki/FreeCAD FreeCAD]
**[http://sourceforge.net/projects/qcad/ QCad] | [http://librecad.org/ LibreCAD (open source)] - CAD, Architecture purposes
**[http://www.kdenlive.org/ Kdenlive]
**[http://ekiga.org/ ekiga] same use as Skype but entirely opensource
**[http://irssi.org/ irrsi] irc client, easy to use IRC from shell
**[[LinuxCNC]] (this might require a dual boot installation where back versions of Linux are installed. For example, LinuxCNC works on Ubuntu 8.04 LTS (long-term support) and 10.04 LTS, but not on Ubuntu 9.10. Whatever distribution of Linux is chosen, we need to make sure that LinuxCNC, one of the critical components of CNC machining - is accommodated
**[http://en.m.wikipedia.org/wiki/KiCAD KiCAD] circuit design '''[[KiCAD]]'''
**[http://www.arduino.cc/en/Main/Software Arduino Environment] for programming the Arduino microcontroller
**[[Stereolithography file viewer]] for [http://en.wikipedia.org/wiki/STL_(file_format) STL], [http://en.wikipedia.org/wiki/PLY_(file_format) PLY] or [http://en.wikipedia.org/wiki/Collada Collada] file formats
*** GLC Player: http://www.glc-player.net/
*** [http://meshlab.sourceforge.net/ MeshLab] and or [http://povray.org/ pov-ray]
*** Others ?
** [http://yacy.net/en/ yacy] and [http://seeks-project.info/ seeks] search engines (not strictly needed but the hybrid use of them could be handy to analize in teams an intranet's content if nothing else). Linked to internet seeks constitutes a valid alternative to google too.
** [http://www.gimp.org/ gimp] Open source photo editing program.
** [http://www.libreoffice.org/ LibreOffice] Open source office suite available in more than 100 languages.
** [http://www.scribus.net Scribus] Open source desktop publishing software.
** VCS(version control system) for keeping track of changes and collaboration. With most current version of GVCS pulled down.
*** [http://git-scm.com/ Git]
*** [http://www.fossil-scm.org Fossil]
*** [http://mercurial.selenic.com/ Mercurial]
*Preinstalled libraries and Other Design Libraries
**QCad libraries for design files, house designs, other purposes
**Library of [[Pattern Language Icons]] for symbolic modeling of integrated agroecotechnological systems.
* Some program for handling translation of the interface and language packs.
* Documentation for all of the above.
==See Also==

* Getting [[EMC2]] working in [http://www.archlinux.org/ Archlinux] with RTAI: http://neo-technical.wikispaces.com/emc2-arch
* [[CAD tools]]
* [https://www.gnu.org/distros/free-distros.html free linux distros]

[[Category:Linux]]
[[Category:Software]]

OSE GNU/Linux Build

2014-01-31T08:31:15Z

Jan R. Balzer: Added LibreCAD as open source QCAD alternative.

==Introduction==
It is useful to publish a Linux build dedicated to the development of the Global Village Construction Set ([[GVCS]])

==Contents==
This build would contain:

*Prenstallation of all necessary software:
**[http://www.blender.org/ Blender]
**[http://en.m.wikipedia.org/wiki/FreeCAD FreeCAD]
**[http://sourceforge.net/projects/qcad/ QCad] | [http://librecad.org/ LibreCAD (QCAD open source)] - CAD, Architecture purposes
**[http://www.kdenlive.org/ Kdenlive]
**[http://ekiga.org/ ekiga] same use as Skype but entirely opensource
**[http://irssi.org/ irrsi] irc client, easy to use IRC from shell
**[[LinuxCNC]] (this might require a dual boot installation where back versions of Linux are installed. For example, LinuxCNC works on Ubuntu 8.04 LTS (long-term support) and 10.04 LTS, but not on Ubuntu 9.10. Whatever distribution of Linux is chosen, we need to make sure that LinuxCNC, one of the critical components of CNC machining - is accommodated
**[http://en.m.wikipedia.org/wiki/KiCAD KiCAD] circuit design '''[[KiCAD]]'''
**[http://www.arduino.cc/en/Main/Software Arduino Environment] for programming the Arduino microcontroller
**[[Stereolithography file viewer]] for [http://en.wikipedia.org/wiki/STL_(file_format) STL], [http://en.wikipedia.org/wiki/PLY_(file_format) PLY] or [http://en.wikipedia.org/wiki/Collada Collada] file formats
*** GLC Player: http://www.glc-player.net/
*** [http://meshlab.sourceforge.net/ MeshLab] and or [http://povray.org/ pov-ray]
*** Others ?
** [http://yacy.net/en/ yacy] and [http://seeks-project.info/ seeks] search engines (not strictly needed but the hybrid use of them could be handy to analize in teams an intranet's content if nothing else). Linked to internet seeks constitutes a valid alternative to google too.
** [http://www.gimp.org/ gimp] Open source photo editing program.
** [http://www.libreoffice.org/ LibreOffice] Open source office suite available in more than 100 languages.
** [http://www.scribus.net Scribus] Open source desktop publishing software.
** VCS(version control system) for keeping track of changes and collaboration. With most current version of GVCS pulled down.
*** [http://git-scm.com/ Git]
*** [http://www.fossil-scm.org Fossil]
*** [http://mercurial.selenic.com/ Mercurial]
*Preinstalled libraries and Other Design Libraries
**QCad libraries for design files, house designs, other purposes
**Library of [[Pattern Language Icons]] for symbolic modeling of integrated agroecotechnological systems.
* Some program for handling translation of the interface and language packs.
* Documentation for all of the above.
==See Also==

* Getting [[EMC2]] working in [http://www.archlinux.org/ Archlinux] with RTAI: http://neo-technical.wikispaces.com/emc2-arch
* [[CAD tools]]
* [https://www.gnu.org/distros/free-distros.html free linux distros]

[[Category:Linux]]
[[Category:Software]]

Germany/Wind Turbine

2014-01-13T01:04:00Z

Jan R. Balzer: /* Open Source Ecology Germany link only works without the slash at the end, omg how could I forget that. */

{{Germany}}

=Content moved to [http://wiki.opensourceecology.de/Wind_Turbine Open Source Ecology Germany].=

==Status==

The '''wind turbine''' is in the research phase of product development, we are focusing on the '''[[TiVA]]'''-System right now.
[[File:Etemu.com_TiVA_l2_front_wip.jpg|720px|thumb|center|3D Model of a [[TiVA]] rotor, work in progress. Note the hollow wings, this is a hybrid lift/drag wing profile with a full load TSR<ref>Tip Speed Ratio</ref> of 0.85.]]

==Sources==
<references />

[[Category: Wind energy]]

Germany/Wind Turbine

2014-01-13T00:08:35Z

Jan R. Balzer: /* Open Source Ecology Germany link changed. */

{{Germany}}

=Content moved to [http://wiki.opensourceecology.de/Wind_Turbine/ Open Source Ecology Germany].=

==Status==

The '''wind turbine''' is in the research phase of product development, we are focusing on the '''[[TiVA]]'''-System right now.
[[File:Etemu.com_TiVA_l2_front_wip.jpg|720px|thumb|center|3D Model of a [[TiVA]] rotor, work in progress. Note the hollow wings, this is a hybrid lift/drag wing profile with a full load TSR<ref>Tip Speed Ratio</ref> of 0.85.]]

==Sources==
<references />

[[Category: Wind energy]]

User:Jan R. Balzer

2013-04-21T14:55:16Z

Jan R. Balzer:

[[Image:myfotofile.jpg|thumb| myname]]

==Team Culturing Information==

==='''WHO''' I am?===
*At the point of writing I am a student of aerospace systems at university (for several years now) with a strong background in farming as I just grew up in a countryside next to nowwhere and still feel myself as belonging rather to nowhere than to big collections of concrete.
* Astronomy, Nature, hence Ecology (Biology) & the impossible such as myths, fairytales and fantasy and the good are my life.
* In terms of philosophy and thinking I'm not at one wavelength with what common thinking of many beings are, including economy, money, the fox, reptiles and other predators.
* Despite a strong military background in family I am not a declared enemy of war or of using scientific breakthroughs for raiding neighbouring tribes, villages, natives, towns, cities, countries or covenants.

==='''WHY''' are you motivated to support/develop this work?===
*Open source is what will get us forward.
*Open source is what will make our planet Earth's life easier, longer.
*Open source promotes discussion and hence evolves philosophy.
*Open source ecology bundles efforts (instead of many developers engineering several highly redundant solutions, what complicates everything - also it's a waste of time if noone is interested in these projects or lost overview or missing understanding due to lack of documentation, proper open sourcing).

==='''WHAT''' are your skills?===
*Nature
*Webdesign
*Aerospace systems (even though not rigid)
*Embedded systems (not too ridig yet, worked with 8-bit and 32-bit microcontrollers)
*Electronics (it's complicated to keep AC/DC/Non-Linear apart and to know all ICs and what when to consider most important by heart ... still in learning phase)
*Natural Building in form of stoves, fire places, tree houses and shelters (not too rigid and large scale so far).
*Automation of processes (currently struggling with some big projects).
*CAD/CAM familiar, but strong supporter of open source, thus blender/[http://cad4arch.com/cadtools/ CADTools].
*Doing some research on fuel cells and alternative energy.
*Loving art but really not too skilled myself.
*Rather need some more endless education before teaching you guys how to raise a village.
*Familiar with CNC & soon 3D printer.
*Chemistry basics.
*Like animals
*Farm work
**Haying
**Milking cow or goat, machine or not.

''How have you already contributed to the project?''
*I contributed by spreading the word, some more minor wiki corrections and evolving the german wing of opensourceecology. My projects I submit under the giant of open source ecolgy and especially its purpose, philosophy and flair. (what I'm not happy with is more and more consulting and marketing finding its way to OSE, eventhough I think that's unavoidable).

===HOW can you help?===
*''How are you interested in contributing to the work of GVCS development?''
In giving what I can, and hopefully the realization of some machines and/or by open sourcing some of my findings.
*''Can you volunteer to work with us, and if so, how many hours per week?''
This question is unlucky. People give what they are able to give within their freetime (volunteering, especially per virtual connection, will not feed them). Volunteering even by real world connection where people usually invite you if you e.g. have no more to eat, is difficult. So doing this for you with real volunteering contract as this question somewhat implies (tell me please if I'm wrong) is not doable. Open sourcing and contributing volunteeringly to projects of course is a different story. I'm looking forward to it.
*''Are you interested in working with us for pay? If so, what services can you offer, and what is your hourly or per-project rate?''
This of course, is interest as it would feed oneself. So yes, definitely making freetime philosphy to progress in a full time scale sounds great. My major project would be/is the milking robot (I call it [http://wiki.opensourceecology.de/Milking_robot AMOR], Automated Milking Ongoing Robot).
Other projects are microbial fuel cells & micro hydro as well as electrical power cube conversion.
*''Are you interested in a [[Dedicated Project Visit]]?
Of course! I would like to help you on your small farm! Unfortunately this could prove difficult until at least next fall as I still heavily have to drive my studies forward atm and our farm has, how to call it, let's be transparent and call it financial 'risks'.
*''Are you interested in purchasing equipment from us to help bootstrap development?''
Even that.
*''Are you interested in bidding for consulting/design/prototyping work?''
True.

*''Would you like to see yourself working with us on a full-time basis?''
This would be the summit - even though I doubt you will take me as I had to fly to you, and I'm a crazy guy with even crazier projects.

Now let's proceed with the real thing, making this world a better place (it's time, in recent times the world's complexity and speed of time just got out of control).

[[Category: Team Culturing]]

User:Jan R. Balzer

2013-04-21T14:49:28Z

Jan R. Balzer:

[[Image:myfotofile.jpg|thumb| myname]]

==Team Culturing Information==

==='''WHO''' I am?===
*At the point of writing I am a student of aerospace systems at university (for several years now) with a strong background in farming as I just grew up in a countryside next to nowwhere and still feel myself as belonging rather to nowhere than to big collections of concrete.
* Astronomy, Nature, hence Ecology (Biology) & the impossible such as myths, fairytales and fantasy and the good are my life.
* In terms of philosophy and thinking I'm not at one wavelength with what common thinking of many beings are, including economy, money, the fox, reptiles and other predators.
* Despite a strong military background in family I am not a declared enemy of war or of using scientific breakthroughs for raiding neighbouring tribes, villages, natives, towns, cities, countries or covenants.

==='''WHY''' are you motivated to support/develop this work?===
*Open source is what will get us forward.
*Open source is what will make our planet Earth's life easier, longer.
*Open source promotes discussion and hence evolves philosophy.
*Open source ecology bundles efforts (instead of many developers engineering several highly redundant solutions, what complicates everything - also it's a waste of time if noone is interested in these projects or lost overview or missing understanding due to lack of documentation, proper open sourcing).

==='''WHAT''' are your skills?===
*Nature
*Webdesign
*Aerospace systems (even though not rigid)
*Embedded systems (not too ridig yet, worked with 8-bit and 32-bit microcontrollers)
*Electronics (it's complicated to keep AC/DC/Non-Linear apart and to know all ICs and what when to consider most important by heart ... still in learning phase)
*Natural Building in form of stoves, fire places, tree houses and shelters (not too rigid and large scale so far).
*Automation of processes (currently struggling with some big projects).
*CAD/CAM familiar, but strong supporter of open source, thus blender/[http://cad4arch.com/cadtools/ CADTools].
*Doing some research on fuel cells and alternative energy.
*Loving art but really not too skilled myself.
*Rather need some more endless education before teaching you guys how to raise a village.
*Familiar with CNC & soon 3D printer.
*Chemistry basics.
*Like animals
*Farm work
**Haying
**Milking cow or goat, machine or not.

''How have you already contributed to the project?''
*I contributed by spreading the word, some more minor wiki corrections and evolving the german wing of opensourceecology. My projects I submit under the giant of open source ecolgy and especially its purpose, philosophy and flair. (what I'm not happy with is more and more consulting and marketing finding its way to OSE, eventhough I think that's unavoidable).

===HOW can you help?===
*''How are you interested in contributing to the work of GVCS development?''
In giving what I can, and hopefully the realization of some machines and/or by open sourcing some of my findings.
*''Can you volunteer to work with us, and if so, how many hours per week?''
This question is unlucky. People give what they are able to give within their freetime (volunteering, especially per virtual connection, will not feed them). Volunteering even by real world connection where people usually invite you if you e.g. have no more to eat, is difficult. So doing this for you with real volunteering contract as this question somewhat implies (tell me please if I'm wrong) is not doable. Open sourcing and contributing volunteeringly to projects of course is a different story. I'm looking forward to it.
*''Are you interested in working with us for pay? If so, what services can you offer, and what is your hourly or per-project rate?''
This of course, is interest as it would feed oneself. So yes, definitely making freetime philosphy to progress in a full time scale sounds great. My major project would be/is the milking robot (I call it AMOR, Automated Milking Ongoing Robot).
Other projects are microbial fuel cells & micro hydro as well as electrical power cube conversion.
*''Are you interested in a [[Dedicated Project Visit]]?
Of course.
*''Are you interested in purchasing equipment from us to help bootstrap development?''
Even that.
*''Are you interested in bidding for consulting/design/prototyping work?''
True.

*''Would you like to see yourself working with us on a full-time basis?''
This would be the summit - even though I doubt you will take me as I had to fly to you, and I'm a crazy guy with even crazier projects.

Now let's proceed with the real thing, making this world a better place (it's time, in recent times the world's complexity and speed of time just got out of control).

[[Category: Team Culturing]]

User:Jan R. Balzer

2013-04-21T14:48:39Z

Jan R. Balzer: Created page with " myname ==Team Culturing Information== ==='''WHO''' I am?=== *At the point of writing I am a student of aerospace systems at university (for s..."

[[Image:myfotofile.jpg|thumb| myname]]

==Team Culturing Information==

==='''WHO''' I am?===
*At the point of writing I am a student of aerospace systems at university (for several years now) with a strong background in farming as I just grew up in a countryside next to nowwhere and still feel myself as belonging rather to nowhere than to big collections of concrete.
* Astronomy, Nature, hence Ecology (Biology) & the impossible such as myths, fairytales and fantasy and the good are my life.
* In terms of philosophy and thinking I'm not at one wavelength with what common thinking of many beings are, including economy, money, the fox, reptiles and other predators.
* Despite a strong military background in family I am not a declared enemy of war or of using scientific breakthroughs for raiding neighbouring tribes, villages, natives, towns, cities, countries or covenants.

==='''WHY''' are you motivated to support/develop this work?===
*Open source is what will get us forward.
*Open source is what will make our planet Earth's life easier, longer.
*Open source promotes discussion and hence evolves philosophy.
*Open source ecology bundles efforts (instead of many developers engineering several highly redundant solutions, what complicates everything - also it's a waste of time if noone is interested in these projects or lost overview or missing understanding due to lack of documentation, proper open sourcing).

==='''WHAT''' are your skills?===
*Nature
*Webdesign
*Aerospace systems (even though not rigid)
*Embedded systems (not too ridig yet, worked with 8-bit and 32-bit microcontrollers)
*Electronics (it's complicated to keep AC/DC/Non-Linear apart and to know all ICs and what when to consider most important by heart ... still in learning phase)
*Natural Building in form of stoves, fire places, tree houses and shelters (not too rigid and large scale so far).
*Automation of processes (currently struggling with some big projects).
*CAD/CAM familiar, but strong supporter of open source, thus blender/[http://cad4arch.com/cadtools/ CADTools].
*Doing some research on fuel cells and alternative energy.
*Loving art but really not too skilled myself.
*Rather need some more endless education before teaching you guys how to raise a village.
*Familiar with CNC & soon 3D printer.
*Chemistry basics.
*Like animals
*Farm work
**Haying
**Milking cow or goat, machine or not.

''How have you already contributed to the project?''
*I contributed by spreading the word, some more minor wiki corrections and evolving the german wing of opensourceecology. My projects I submit under the giant of open source ecolgy and especially its purpose, philosophy and flair. (what I'm not happy with is more and more consulting and marketing finding its way to OSE, eventhough I think that's unavoidable).

===HOW can you help?===
*''How are you interested in contributing to the work of GVCS development?''
In giving what I can, and hopefully the realization of some machines and/or by open sourcing some of my findings.
*''Can you volunteer to work with us, and if so, how many hours per week?''
This question is unlucky. People give what they are able to give within their freetime (volunteering, especially per virtual connection, will not feed them). Volunteering even by real world connection where people usually invite you if you e.g. have no more to eat, is difficult. So doing this for you with real volunteering contract as this question somewhat implies (tell me please if I'm wrong) is not doable. Open sourcing and contributing volunteeringly to projects of course is a different story. I'm looking forward to it.
*''Are you interested in working with us for pay? If so, what services can you offer, and what is your hourly or per-project rate?''
This of course, is interest as it would feed oneself. So yes, definitely making freetime philosphy to progress in a full time scale sounds great. My major project would be/is the milking robot (I call it AMOR, Automated Milking Ongoing Robot).
Other projects are microbial fuel cells & micro hydro as well as electrical power cube conversion.
*''Are you interested in a [[Dedicated Project Visit]]?
Of course.
*''Are you interested in purchasing equipment from us to help bootstrap development?''
Even that.
*''Are you interested in bidding for consulting/design/prototyping work?''
True.
*''Are you a [[True Fans|True Fan]]?''

*''Would you like to see yourself working with us on a full-time basis?''
This would be the summit - even though I doubt you will take me as I had to fly to you, and I'm a crazy guy with even crazier projects.

Now let's proceed with the real thing, making this world a better place (it's time, in recent times the world's complexity and speed of time just got out of control).

[[Category: Team Culturing]]

Inverter

2013-04-21T14:25:14Z

Jan R. Balzer: /* General Schematic */

=Introduction=

An open source inverter appears! In development.

[[Inverter Log]]

----

'''Boost Converter'''

[[File: boostsch.odt]]

[[File: boostsch.sch]]

[[File: boostsch.jpg|300px]]

Notes: linear regulators may not be able to handle 72V input, so switching step-down regulator needed in between the 72V and linear regulators.

==General Schematic==

<html>
<img src="https://docs.google.com/drawings/pub?id=1aB140an7Ct3fl4JJcXs0MOS-zTV52nvSJxtgLN5YjVw&w=480&h=360">
</html>

[https://docs.google.com/drawings/d/1aB140an7Ct3fl4JJcXs0MOS-zTV52nvSJxtgLN5YjVw/edit EDIT & COMMENT]

----

'''Control Waveform Diagram'''

In order to understand the control waveform diagram, the concepts "amplification", "sum (superposition)", and "comparator" must be understood.

[[File: ampsumcomp.svg|700px]]

[[File: controlwaveform.svg|1100px]]

----
'''Carrier Wave and Reference Wave, Combine and Transform! Transformers- waveforms in disguise.'''

[[File:Pwm.png|300px]]

The blue triangle wave is the '''carrier wave'''. High frequency.

The green sine wave is the '''reference wave'''. Desired output frequency and waveform.

The pink square wave is the '''PWM wave'''. It's what you get when you combine the carrier wave and the reference wave into a '''[http://en.wikipedia.org/wiki/Comparator comparator]'''. When the reference wave is a higher voltage than the carrier wave, the pink square wave is high voltage. When the reference wave is a lower voltage than the carrier wave, the pink square wave is low voltage.

----
'''Why do you want me to step the DC up?'''
- Note, the squared graph is not entirely correct (e.g. (0.5)^2 = .25 not equal to .5), the curve descends steeper at first and then less and less, finally there is no kink in the curve. Sorry for that. (What we've depicted is |f(t)|, i.e. the absolute value (i.e.where f negative, |f| is positive)) [http://www.wolframalpha.com/input/?i=f%3D+sin^2%28t%29 see Mathematica].
<br />

[[File:Calculating_rms.png|300px]]

[http://en.wikipedia.org/wiki/Root_mean_square What the hell is a root mean square?]

==Design Methodology==

Outline of suggested design methodology (from Darren Vandervort, formerly of R&D of Power Electronics at Intel)

* The first step is to come up with '''design goals''', and define '''constraints'''. (time, budget, power, size for example.)

* Pros and cons of different design paths are measured against goals and constraints, and a '''design path is chosen'''. (at this point the design goals are more or less locked. The design dictated which path was chosen, and if that changes the path will most likely change and any work performed after this point is wasted.)

* '''Schematic capture and part sourcing'''. These are inherently linked and lots of compromises are made during this step to match the values you described. For example, there may be a pre-manufactured module that can save time, but cost more money in the final design.

* '''Simulation and refinement'''. Simulation has become much more reliable in the last 6-7 years and this will save several iterations and the results are fed back into the schematic capture phase. After this phase is done the design should be considered closed. Simulation is great for exploring off-nominal behavior such as overload, low power factor, reverse power from load, etc.

* '''Layout'''. This is the design of the actual PCB. For high frequency there is an extra simulation step here as well because the layout becomes a much larger part of how the circuit performs. Unless one of the constraints for this design is "as small as possible" the frequencies involved will not necessitate simulation here.

* '''Prototype and testing'''. I would not consider the first design to be the first version. There are always things overlooked by the engineer that will have to be addressed.

==Design Goals==

Input: approx. 72VDC

Output: 120VAC 60Hz pure sine wave 5kW - 10kW

==Design Paths==

Step Down + Voltage Regulators: to 3.3V or 5V

Step Up + Voltage Regulators: to 170V

Digital Reference Sine Wave Generation

Carrier Wave Generation

PWM Driver

Power Handling: H Bridge with MOSFETs

Buck/Boost converter? Multi-tap Transformer?

Feedback: Error into PID Loop into amplitude factor of reference wave amplification

==Schematic==

==Simulation==

==Layout==

==Printed Circuit Assembly==

==Case and External Connections==

[[Terminal Case]]

[[Terminal Block]]

==Complete Assembly==

== Old Notes ==

In summary, use a voltage regulator with circuitry to make a reference sine wave at the desired AC frequency and a carrier triangle wave at high frequency, compare the two waves to get a PWM signal and run that into an H-bridge with high DC input from a boost converter, then followed by a filter and a feedback circuit. Tada, inverter.

[[Inverter/Yoonseo Design]]

==Industry & Open Source Research==

=== Inverter Papers ===

Some from [[Universal Power Supply/Research Development]].

*100kW open source inverter for AC induction motor - [http://eet.etec.wwu.edu/ahmanna/project/docs/Prodject%20description.pdf]
*[http://www.akamaiuniversity.us/PJST8_1_4.pdf Paper on Low-Power Square Wave Inverter Including Circuit Diagram and Specific Explanations]
*[http://www.wpi.edu/Pubs/E-project/Available/E-project-042507-151144/unrestricted/High_Voltage_DC_Converter.pdf Paper on Medium Power True Sine Wave Inverter Including Circuit Diagram and Bill of Materials]
*[http://www.wpi.edu/Pubs/E-project/Available/E-project-042507-092653/unrestricted/MQP_D_1_2.pdf DC/AC Pure Sine Wave Inverter]
*[http://www.osti.gov/bridge/servlets/purl/861667-Hw2tDi/861667.pdf Solid Oxide Fuel Cell Inverter]
*[http://www.nrel.gov/docs/fy06osti/38771.pdf review of inverter use]

=== Other DIY Inverters ===

#10 kW induction heater + inverter circuit - [http://www.mindchallenger.com/inductionheater/inductionlevitation4.html]
#'''Microwave Transfomers''' - they propose to use modified transformers from old microwave ovens, you’d need about 10 broken micros’ and 20 N-type power MOSFET’s for a 9kw unit. [http://electronics-diy.com/electronic_schematic.php?id=609]
#'''Open Source 100kW Electric Vehicle Controller/Inverter'''. This is a senior project for electrical vehicles. Its out is 3 phase. This could be of interest for the induction furnace. The design is very simple. Not sure if it was ever implemented. It is made mostly from IC's. Maybe these could be replaced to reduce some of the costs. [http://eet.etec.wwu.edu/ahmanna/project/docs/Prodject%20description.pdf]
#'''Solar Grid-Intertie Inverter''' - http://www.timnolan.com/index.php?page=solar-grid-intertie-inverter
#500W Inverter - [http://www.electronics-lab.com/projects/power/005/index.html]
#Open Source Software and ARM based control board for driving an AC induction motor with V/Hz or FOC - [http://www.tumanako.net tumanako.net]

===Scalable Commercial Inverter===

The company MGE UPS seems to have merged with another one named APC, but the concept is good. This inverter is scalable up to 20kw. It looks like the inverters are designed to share some resources and are just connected in series.

(bad link) http://rep.mgeups.com/3ppdf/s4.pdf

From wikipedia on scalable 3 phase AC:
To construct inverters with higher power ratings, two six-step three-phase inverters can be connected in parallel for a higher current rating or in series for a higher voltage rating. In either case, the output waveforms are phase shifted to obtain a 12-step waveform. If additional inverters are combined, an 18-step inverter is obtained with three inverters etc. Although inverters are usually combined for the purpose of achieving increased voltage or current ratings, the quality of the waveform is improved as well. [http://en.wikipedia.org/wiki/Inverter_%28electrical%29 1]

===Arduino Based Inverters===
*http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1287161833
*http://www.kerrywong.com/2010/03/12/a-power-inverter-with-arduino-pulse-source/

=== Unevaluated Links from Gabrielle Leblanc ===

http://www.youtube.com/watch?v=aY9qmeA8gVI
Homemade 1.8kW Inverter-Generator

http://www.youtube.com/watch?v=aLAXaB9t7GU
Homemade Battery Charger & Generator

http://www.youtube.com/watch?v=GmZ5-9a0Rac&feature=plcp
update to above

===Legacy Inverter Designs===

'''I2K Power Inverter'''

This is a decently well documented inverter system, 2 kW, using transformers. See: http://192.197.62.35/staff/mcsele/i2k.htm

*Disadvantages: about 70-80% efficient; appears that non-solid state inverters are less efficient than solid state. The author also confesses it is an older design, that uses a software generated PWM signal.
*Commercial, solid-state inverters are 90-95% efficient (ex., [http://www.buy.com/retail/product.asp?sku=90137311&listingid=41754101])

''' Institute for Appropriate Technology Inverter'''

Smaller-power, lightly documented example, up to 1000W:
http://www.i4at.org/lib2/inverter.htm

== Other Reading ==

http://en.wikipedia.org/wiki/Power_factor

http://en.wikipedia.org/wiki/Power_system_harmonics

[[Category:Inverter]]